High vinyl acetate (VA) content in EVA resins, typically above 28%, gives the material enhanced flexibility, softness, and clarity. These properties make high VA content EVA resins particularly suitable for applications that require high elasticity and excellent transparency. Here are the main uses for high VA content EVA resins:
Flexible Films
High VA EVA is extensively used to manufacture highly flexible and transparent films. These films are ideal for food packaging where clarity and flexibility are crucial. They are also used in surface protection films and laminating films that require a soft, clear finish.
Photovoltaic Panel Encapsulation
EVA resins with high VA content are preferred for encapsulating photovoltaic (solar) panels. They offer excellent encapsulation properties, such as transparency, adhesion, and weather resistance, which are essential for protecting the sensitive components of solar cells.
Hot-Melt Adhesives
High VA content EVA resins are used in hot-melt adhesives that require more flexibility and better adhesion properties, particularly for applications like bookbinding, woodworking, and the assembly of delicate electronic components.
Medical Products
Due to their softness and safety, high VA EVA resins are suitable for various medical applications, including tubing, bags for blood and fluids, and wound care products.
Toys and Craft Materials
High VA EVA is often used in the production of children’s toys and craft items, such as play mats and modeling clays, because of its flexibility, safety, and range of colours.
Shoe In-Sole foams and Components
In the footwear industry, high VA EVA resins are used to produce soft, flexible components, especially insole foams and outsoles for shoes that require a high degree of comfort and shock absorption.
These applications benefit from the unique combination of softness, clarity, and flexibility provided by high VA content EVA, making it a valuable material for industries where these properties are prioritized.
Flexible Films
High VA EVA is extensively used to manufacture highly flexible and transparent films. These films are ideal for food packaging where clarity and flexibility are crucial. They are also used in surface protection films and laminating films that require a soft, clear finish.